Relevant bibliographies by topics / Jigs and fixtures Flexible manufacturing systems

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Jigs and fixtures Flexible manufacturing systems'

Author: Grafiati
Published: 4 June 2021
Last updated: 15 February 2022

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Journal articles on the topic "Jigs and fixtures Flexible manufacturing systems"

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Kusiak, Andrew, Anthony Vannelli†, and K. Ravi Kumar‡. "Grouping problem in scheduling flexible manufacturing systems." Robotica 3, no. 4 (October 1985): 245–52. http://dx.doi.org/10.1017/s0263574700002344.

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SUMMARYIn this paper the problem of grouping parts and fixtures in Flexible Manufacturing Systems (FMSs) is discussed. A network formulation of the grouping problem is presented. Based on this formulation an efficient heuristic algorithm is developed. The importance of grouping of parts and fixtures in FMSs as well as some of the computational results are discussed.
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Nee, A. Y. C., N. Bhattacharyya, and A. N. Poo. "Applying AI in jigs and fixtures design." Robotics and Computer-Integrated Manufacturing 3, no. 2 (January 1987): 195–200. http://dx.doi.org/10.1016/0736-5845(87)90102-5.

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Nicksch, C., A. Buckhorst, W. Meyer, P. Baryliszyn, and R. Schmitt. "Vorrichtungslose Montage von Karosseriebauteilen*/Fixtureless assembly of car body components - Virtual assembly of flexible joining processes in automotive prototype construction using laser radar." wt Werkstattstechnik online 109, no. 09 (2019): 628–33. http://dx.doi.org/10.37544/1436-4980-2019-09-14.

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Im automobilen Prototypenbau werden starre Vorrichtungen genutzt, um Karosseriebauteile für Fügeprozesse zueinander auszurichten. Geringe Stückzahlen der Vorserie führen zu kurzen Nutzungsphasen der aufwendig aufgebauten und eingemessenen Vorrichtungen. Im Beitrag wird ein Ansatz zur vorrichtungslosen Montage durch den Einsatz von Industrierobotik und laserbasierter Messtechnik vorgestellt. Die Ergebnisse zeigen, dass sich für einzelne Baugruppen Möglichkeiten für das vorrichtungslose Fügen in der industriellen Praxis ergeben.   Rigid fixtures are used in automotive prototype construction to align body parts for joining processes. Small quantities of the prototype series lead to short usage of the laboriously assembled and calibrated fixtures. In the following, an approach of fixtureless assembly using industrial robots and laser metrology is presented. The results show that some fixtures and jigs can be dispensed with for individual components in industrial practice.
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Wang, Jin Feng, Guang Feng Zhang, and Xian Zhang Feng. "Characteristics Analysis of Flexible Manufacturing Systems." Applied Mechanics and Materials 329 (June 2013): 172–75. http://dx.doi.org/10.4028/www.scientific.net/amm.329.172.

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For the rigid automatic line, although its production efficiency is high, but the flexible is less in the machining process, the machine and the assembly line need be shut down to adjust or replace for machine tools, jigs, tools, and tooling equipment, etc. When the work pieces for the machining is changed. It caused a heavy workload, wasting a lot of time. Flexible Manufacturing Systems consisted of unified control system, material handling system and a set of digital control processing equipment; it is the automation machinery manufacturing system to adapt the processing object transform. It has become one of the important means of manufacturing industry to obtain the advantages of market competitiveness. This paper gives the composition, algorithm and application of learning system concept, composition, and classification, characteristics of the flexible manufacturing system, the development overview and its application are induced in this paper.
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Thompson, B. S., and M. V. Gandhi. "Particulate Fluidized-Bed Fixtures for Automated Manufacturing." Journal of Energy Resources Technology 108, no. 2 (June 1, 1986): 194–96. http://dx.doi.org/10.1115/1.3231262.

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Flexible manufacturing systems are designed to produce a wide variety of parts with different shapes and sizes. However, the current philosophy of employing dedicated fixtures is expensive, and inefficient, and if these modern manufacturing systems are to be truly flexible, then the fixturing must be flexible also. This paper which reports on an innovative class of flexible fixtures based on particulate fluidized beds, not only presents a mathematical model governing the holding ability of this novel class of fixtured, but also summarizes the results of parametric computer studies.
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Gandhi, M. V., and B. S. Thompson. "Automated design of modular fixtures for flexible manufacturing systems." Journal of Manufacturing Systems 5, no. 4 (January 1986): 243–52. http://dx.doi.org/10.1016/0278-6125(86)90055-5.

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Gandhi, M. V., B. S. Thompson, and D. J. Maas. "Adaptable Fixture Design: An Analytical and Experimental Study of Fluidized-Bed Fixturing." Journal of Mechanisms, Transmissions, and Automation in Design 108, no. 1 (March 1, 1986): 15–21. http://dx.doi.org/10.1115/1.3260777.

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Computer-integrated flexible manufacturing systems are designed to respond quickly and economically to varying production requirements. Since an essential ingredient of all manufacturing operations is fixturing, if these modern manufacturing systems are to be truly flexible, then the fixturing must be adaptable also. Traditional design philosophies focused on dedicated fixtures are clearly inadequate for these applications. This paper reports on an innovative class of adaptable fixtures based on particulate fluidized beds. This mode of fixturing exploits the ability of these devices to change from a solid phase to a liquid phase and vice versa. Design criteria for the holding ability of this novel class of fixtures is established herein, and the proposed design philosophy is validated by an experimental program.
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Ivanov, Vitalii, Oleksandr Liaposhchenko, Yuliia Denysenko, and Ivan Pavlenko. "Ensuring economic efficiency of flexible fixtures in multiproduct manufacturing." Engineering Management in Production and Services 13, no. 1 (March 1, 2021): 53–62. http://dx.doi.org/10.2478/emj-2021-0004.

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Abstract The first-priority directions for modern engineering, especially for multiproduct manufacturing, include the intensification of manufacturing processes, increasing the efficiency of technological equipment, and reducing the time required to implement technological solutions. Fixture design is a complicated and time-consuming process that requires considering many parameters of the closed-loop technological system “machine tool — fixture — cutting tool — workpiece”. One machined part can have several fixture layouts corresponding to all specified parameters; however, their effectiveness differs depending on production conditions. Search for an optimal fixture for specified production conditions is an essential stage of production planning. It has been proved that the efficiency of a manufacturing process should be assessed using single economic indicator — the cost of machining, which considers the costs of time, the total costs for process realisation, and a batch of parts. The paper aims to substantiate the efficiency of manufacturing processes in machining complex parts using flexible fixtures by developing a mathematical model that considers the cost of time, the cost of implementing the manufacturing process, and the batch value of parts production. This approach estimates the efficiency of manufacturing processes for machining complex parts and choosing the flexible fixture layout that corresponds to specific production conditions. It was proved that flexible fixtures could be effectively used for machining small batches of parts with frequent readjustments to new workpieces and short-term machining. A tendency has been established that the higher number of nomenclature of parts contributes to expanding the scope of the effective use of flexible fixtures.
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Khusainov, R. M., R. R. Mindiyarov, and B. I. Petrovetskiy. "Solving optimization problems in the design of fixtures for flexible manufacturing systems." IOP Conference Series: Materials Science and Engineering 971 (December 1, 2020): 032063. http://dx.doi.org/10.1088/1757-899x/971/3/032063.

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Lee, Jinkoo, S. Jack Hu, and Allen C. Ward. "Workspace Synthesis for Flexible Fixturing of Stampings." Journal of Manufacturing Science and Engineering 121, no. 3 (August 1, 1999): 478–84. http://dx.doi.org/10.1115/1.2832706.

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Fixtures are used to position and hold parts for a series of assembly operations. In automotive body assembly, these fixtures conventionally have been dedicated, therefore they must be replaced whenever there are model changes in an auto body assembly plant. In recent years, however, the automotive industry has been changing from high volume to small-to-medium volume production per model with an increasing number of models because customer tastes are diversifying. To cope with this change, auto companies need to be capable of producing a variety of models in small-to-medium volume, and they rely on flexible assembly lines and flexible fixtures. These flexible fixtures use robots as programmable fixture elements so that they can be reprogrammed for different stamped sheet metal parts. When designing flexible fixtures, fixture designers need to be concerned with fixture workspaces for a set of different stampings. However, existing fixture design methods address the fixturing of one stamping only. This paper presents a system that fixture designers can use to synthesize flexible fixture workspaces for a set of different stampings. Based on circular workspaces for flexible fixture robots, this system finds optimal workspace sizes and centers on a fixture base plate with a graphical display for visual checking. This system is simple to use and produces results quickly.
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Dissertations / Theses on the topic "Jigs and fixtures Flexible manufacturing systems"

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Hurtado, José Francisco. "Modeling and analysis of conformability and static stability in flexible fixturing." Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/17368.

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Schmitt, Robert Joseph. "The design of a flexible fixturing system." Thesis, Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/17958.

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Ghatpande, Puja Sudhakar. "Study of fixturing accessibilities in computer-aided fixture design." Worcester, Mass. : Worcester Polytechnic Institute, 2008. http://www.wpi.edu/Pubs/ETD/Available/etd-080808-195905/.

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Books on the topic "Jigs and fixtures Flexible manufacturing systems"

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Nee, A. Y. C. Advanced fixture design for FMS. London: Springer-Verlag, 1995.

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Nee, Andrew Y. C. An advanced treatise on fixture design and planning / Andrew Y.C. Nee, Z.J. Tao, A. Senthil Kumar. Singapore: World Scientific Press, 2004.

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J, Tao Z., and Senthil kumar A. 1966-, eds. An advanced treatise on fixture design and planning. Hackensack, N.J: World Scientific, 2004.

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Book chapters on the topic "Jigs and fixtures Flexible manufacturing systems"

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Zaloga, Viliam, Vitalii Ivanov, Ivan Pavlenko, and Ivan Dehtiarov. "Technological Assurance of Manufacturing Effectiveness on CNC Machining Centers." In Advances in Business Information Systems and Analytics, 344–84. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-2725-2.ch016.

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The chapter is devoted to the solving of the problem of increasing the efficiency of lever-type parts machining due to the introduction of flexible fixtures ensuring multi-axis machining. The relationship between the design and technological parameters of the parts were discovered, which is the fundamentals for the analysis of parts and the search for the fixture layout for the given production conditions. An innovative approach to the design of technological processes for lever-type parts machining is proposed, which is based on the principle of intensification of machining processes, design and technological features of the parts, functional and technological capabilities of modern metal-cutting machine tools. A mathematical model of machining accuracy of parts depending on the level of fixture flexibility is obtained. It is analytically and experimentally proved the feasibility of using flexible fixtures for multi-axis machining of lever-type parts in multiproduct manufacturing.
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Conference papers on the topic "Jigs and fixtures Flexible manufacturing systems"

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Kosˇt’a´l, Peter, and Karol Veli´sˇek. "Flexible Manufacturing Cell’s Clamping Fixture." In ASME 2008 9th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2008. http://dx.doi.org/10.1115/esda2008-59573.

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In these days the increasing of cutting speed (decreasing of main cutting time) has no majority influence to the productivity increasing. For this reason we have to short additional times what has important influence mainly by repeated operations. Additional times shortening is one of main conditions used for productivity increasing and by decreasing of manufacturing costs. One possibility how to short additional times is use optimal clamping device, as well as automation of clamping operations. Using of proper clamping device will lead to the quality and productivity increasing as well as to the decreasing of manufacturing costs. Development of new generation manufacturing machines and manufacturing systems needs, that this kinds of machines have to be equipped by proper clamping devices. That why clamping fixtures are developing together with manufacturing machines. Such developed fixtures can be used also in manufacturing systems with high repeatability of production baths, but they are mainly assigned for one piece manufacture, for clamping of more complicated pieces. Intelligent fixtures are different from classical fixtures not only by its design, but also by its properties. Its development is connected with its design and designing of higher generation machines.
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Ivanov, Vitalii, Ivan Dehtiarov, and Jozef Zajac. "Flexible Fixtures for Parts Machining in Automobile Industry." In 2nd EAI International Conference on Management of Manufacturing Systems. EAI, 2018. http://dx.doi.org/10.4108/eai.22-11-2017.2274155.

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Cooper, Khershed P. "Direct Digital Additive Manufacturing and Cyber-Enabled Manufacturing Systems." In ASME/ISCIE 2012 International Symposium on Flexible Automation. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/isfa2012-7269.

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The technology of direct digital additive manufacturing (D2AM) has received considerable attention in recent months. Several government agencies and commercial interests are planning to explore D2AM to find solutions to manufacturing problems. The attraction of D2AM is the benefit of rapidly producing without fixtures or tools or human intervention customized objects of complex geometry not possible by traditional methods. The interest in D2AM ranges from fabrication of critical, high value aerospace metallic components to fabrication of objects having an organic look or as nature would have intendedi. For D2AM to be commercially accepted, it must reliably and predictably make products. It must achieve consistency in reproducibility across relevant D2AM methods. The Office of Naval Research (ONR) has launched a new basic research program, known as Cyber-enabled Manufacturing Systems (CeMS). The long-range goal of the program is to achieve the level of control over D2AM processes for industrial acceptance and wide-use of the technology. This program will develop measuring, sensing and control models and algorithms for D2AM by harnessing principles underpinning cyber-physical systems (CPS) and fundamentals of physical processes. This paper describes the challenges facing D2AM and the CeMS program goals to meet them.
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Prombanpong, S., R. L. Lewis, and A. B. Bishop. "A Computer-Aided Fixture Design System With Process Planning Integration for Prismatic Parts Manufactured on CNC Machining Centers." In ASME 1992 International Computers in Engineering Conference and Exposition. American Society of Mechanical Engineers, 1992. http://dx.doi.org/10.1115/cie1992-0045.

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Abstract Jigs and fixtures are indispensable tools in various manufacturing processes. These processes include metal removal, assembly, welding, and inspection processes. Not only do jigs and fixtures facilitate the operations, but also provide quick loading/unloading, proper and consistent supporting and locating of a workpiece. As a result, the workpiece can be manufactured economically in proportion to the volume of production. With the advent of computer aided design and computer aided manufacturing together with an increasing power of both computer hardware and software, computerized fixture design systems become feasible and more sophisticated. The current computerized fixture design systems are developed utilizing several approaches ranging from simple interactive placement of fixture components to sophisticated generative systems. However, one of the common drawbacks of these systems is a lack of process planning integration in the fixture design considerations. As a result, the contradiction between fixture design generated by the computerized fixture design system and a process plan generated by a process planner or by computer aided process planning software always occurs. In other words, the fixture set-ups and workpiece orientation are not congruent to the process plan. This paper serves to discuss a solution to the problem mentioned above. A mathematical model was developed to integrate process planning in fixture design considerations. An optimized fixture design system will be presented and discussed. Examples of tested cases are also presented.
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Bai, Yong, and Yiming (Kevin) Rong. "Automated Generation of Fixture Configuration Design." In ASME 1995 Design Engineering Technical Conferences collocated with the ASME 1995 15th International Computers in Engineering Conference and the ASME 1995 9th Annual Engineering Database Symposium. American Society of Mechanical Engineers, 1995. http://dx.doi.org/10.1115/detc1995-0089.

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Abstract Flexible fixturing is a necessary aspect of flexible manufacturing systems (FMS) and computer-integrated manufacturing systems (CIMS). Modular fixtures are most widely used in industry for job and small batch production. Computer-aided fixture design (CAFD) has become a research focus in implementing FMS and CIMS. Fixture configuration design is an important issue in CAFD. A review of the current research in CAFD indicates that one major problem impeding the automated generation of fixture configuration design is the negligence of study on fixture structures. This paper investigates fundamental structures of dowel-pin modular fixtures and fixturing characteristics of commonly-used modular fixture elements. A modular fixture element assembly relationship graph (MFEARG) is designed to represent combination relationships between fixture elements. Based on MFEARG, algorithms are developed to search all suitable fixturing unit candidates and mount them into appropriate positions on baseplate with an interference checking. A prototype system for automated design of dowel-pin modular fixture configurations is presented in this paper. Fixture design examples are given in the end of the paper.
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Djurdjanovic, Dragan, and Jie Zhu. "Stream of Variation Based Error Compensation Strategy in Multi-Stage Manufacturing Processes." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-81550.

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Linear state space Stream of Variation (SoV) models of error flow in multistation assembly and machining systems have been well studied in the past decade. SoV models were utilized for identification of process-level root causes of manufacturing errors, quantitative characterization of measurements in multistation manufacturing systems, systematic selection of measurement points and features, as well as tolerance allocation and process design. Nevertheless, natural connection of the linear state space form of SoV models with traditional control theory has not been utilized to automatically compensate observed manufacturing errors and thus close the quality control loop. Recent advances in measurement technology and flexible fixtures make such operations possible and in this paper, we propose a method for strategic elimination of root causes of quality problems based on the SoV models of the flow of manufacturing errors. Furthermore, the concept of compensability that quantitatively depicts the capacity of error compensation in a specific system is proposed. Based on this concept analogous to the controllability in the traditional control theory, compensable and non-compensable subspaces of dimensional errors are identified and quantitatively described. Theoretical results have been demonstrated using the SoV model of a real industrial process used for machining of automotive cylinder heads.
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